The gravity station data (32 records) were gathered by Mr. Seth I. Gutman for AridTech
Inc., Denver, Colorado using a Worden Prospector gravity meter. This data base was
received in June 1985. Principal gravity parameters include Free-air Anomalies and
Simple Bouguer Anomalies (no terrain correction applied). The observed gravity values
are referenced to the International Gravity Standardization Net 1971 (IGSN 71). The
gravity anomaly computation uses the Geodetic Reference System 1967 (GRS 67) theoretical
gravity formula. The data are randomly distributed within the area of central San
Bernardino County, California.